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Generated: September 26, 2017

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Title:2-oxo-1-pyrrolidine derivatives, process for preparing them and their uses
Abstract: The invention concerns 2-oxo-1-pyrrolidine derivatives and a process for preparing them and their uses. The invention also concerns a process for preparing .alpha.-ethyl-2-oxo-1-pyrrolidine acetamide derivatives from unsaturated 2-oxo-1-pyrrolidine derivatives. Particularly the invention concerns novel intermediates and their use in methods for the preparation of S-.alpha.-ethyl-2-oxo-1-pyrrolidine acetamide.
Inventor(s): Surtees; John (Watermael-Boisfort, BE), Marmon; Violeta (Oxfordshire, GB), Differding; Edmond (Ottignies-Louvain-la-Neuve, BE), Zimmermann; Vincent (Lausanne, CH)
Assignee: UCB Farchim S.A. (Bulle, CH)
Filing Date:Jan 04, 2005
Application Number:11/028,039
Claims:1. Laevorotatory enantiomer of compound of general formula (B) and pharmaceutically acceptable salts thereof, ##STR00019## wherein R.sup.1 is methyl and X is --COOMe.

2. Laevorotatory enantiomer of compound of general formula (B) and pharmaceutically acceptable salts thereof, ##STR00020## wherein R.sup.1 is methyl and X is --COOEt.

3. A process for preparing the Laevorotatory or enantiomer of compound of general formula (B) according to claim 1 and pharmaceutically acceptable salts thereof, ##STR00021## wherein, R.sup.1 is methyl and X is --COOMe, comprising the asymmetric hydrogenation of Z isomer or E isomer of precursor A2 ##STR00022##

4. A process for preparing the Laevorotatory or enantiomer of compound of general formula (B) according to claim 2 and pharmaceutically acceptable salts thereof, ##STR00023## wherein, R.sup.1 is methyl and X is --COOEt, comprising the asymmetric hydrogentation of precursor A2' ##STR00024##
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Serving 500+ biopharmaceutical companies globally:

US Army
Colorcon
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Chubb
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Cipla

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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